Integer Operations and Expressions

The video tutorial explains how to evaluate expressions by following the order of operations. It demonstrates simplifying expressions within parentheses using integer chips and number lines. The tutorial covers two expressions: 'three minus nine' and 'seven minus twelve', showing how to convert subtraction into addition of negatives. The results are verified using a calculator, and the tutorial concludes with a summary of the simplified expressions.

What is the first step in evaluating expressions according to the order of operations?

• Evaluate exponents

• Add and subtract from left to right

• Multiply and divide from left to right

• Simplify within the parentheses

How can 3 - 9 be rewritten to simplify the expression?

• 3 - 0

• 3 - (-9)

• 3 + (-9)

• 3 + 9

What is the result of 3 + (-9) using integer chips?

• 0

• 6

• -6

• 9

What does subtracting a negative number equate to?

• Subtracting zero

• Adding a negative number

• Adding a positive number

• Subtracting a positive number

What is the final result of the expression 2 - (-6)?

• 10

• 8

• 6

• 4

How can 7 - 12 be rewritten to simplify the expression?

• 7 - 0

• 7 - (-12)

• 7 + (-12)

• 7 + 12

What is the result of 7 + (-12) using integer chips?

• 12

• 0

• 5

• -5

What is the result of adding two negative numbers, -5 + (-5)?

• 5

• 0

• 10

• -10

What is the final result of the expression -5 + (-5)?

• -15

• -10

• 0

• 5

How can the results of the expressions be verified?

• Using a protractor

• Using a ruler

• Using a compass

• Using a calculator